Chen Yajing
Chief Financial Officer
Chen Yajing has filed 10 SEC Form 4 filings (19 transaction rows) across 1 company, with disclosures dating back to 2025. 9 of those filings fall inside the rolling window. Most recent filing: Oct 5, 2026.
On the most recent filing, Chen Yajing is listed as Chief Financial Officer at Zai Lab Ltd. Inside the rolling window, Chen Yajing reported no open-market purchases and 7 open-market sales totaling $224K in ZLAB. The largest disclosed transaction in the window is a sale of 5,199 ZLAB shares on Apr 2, 2026, worth $106K.
Companies traded
Other insiders at ZLAB
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$224K
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| ZLAB | Chief Financial Officer | Sale | 260 | $7K | Aug 21 | SEC ↗ | |
| ZLAB | Chief Financial Officer | Sale | 619 | $15K | Aug 13 | SEC ↗ | |
| ZLAB | Chief Financial Officer | Sale | 2,264 | $40K | Jun 29 | SEC ↗ | |
| ZLAB | Chief Financial Officer | Sale | 853 | $17K | Apr 8 | SEC ↗ | |
| ZLAB | Chief Financial Officer | Sale | 5,199 | $106K | Apr 3 | SEC ↗ | |
| ZLAB | Chief Financial Officer | Sale | 1,703 | $32K | Mar 16 | SEC ↗ | |
| ZLAB | Chief Financial Officer | Sale | 240 | $6K | Nov 4 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Oct 2, 2025 | ZLAB | Sale | $16K |
Frequently asked questions
How many SEC Form 4 filings has Chen Yajing made?
Chen Yajing has filed 10 SEC Form 4 filings (19 transaction rows) across 1 company since 2025.
Which companies does Chen Yajing trade?
Chen Yajing has filed SEC Form 4 disclosures for 1 company, including ZLAB.
When was Chen Yajing's most recent SEC Form 4 filing?
Chen Yajing's most recent SEC Form 4 filing on Tracefour is dated Oct 5, 2026.
What is Chen Yajing's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Chen Yajing is listed as Chief Financial Officer.
What is Chen Yajing's total buy and sell value in the current window?
Inside the rolling retention window, Chen Yajing bought $0 and sold $224K based on SEC Form 4 filings.
What was Chen Yajing's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 5,199 ZLAB shares on 2026-04-02, worth $106K, per SEC Form 4 filings.